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Special color paste for PVC (Polyvinyl Chloride) and production method thereof

A production method and technology of color paste, applied in PVC special color paste and its production field, can solve the problems that colorants affect the mechanical properties of materials, affect product quality, affect product appearance, etc., achieve good stability, improve strength and surface smoothness , the effect of convenient color change

Inactive Publication Date: 2018-04-13
宁波经济技术开发区庆辉塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing PVC material coloring mainly adopts toner dyeing, not only the pigment dust is large during the operation, polluting the environment, but also the toner flying in the high-mixing process will cause inaccurate color matching for the color matching with high requirements
Moreover, the color change of the product is cumbersome, the color is unstable, and the improper use of the colorant will directly affect the mechanical properties of the material. During the extrusion heating process, the toner crystallization will also be caused by the high temperature, which will affect the appearance of the product and affect the quality of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In the embodiment of the present invention, a special color paste for PVC includes the following components: 0.5kg of calcium carbonate, 1.5kg of stabilizer, 0.2kg of colorant, 0.8kg of dispersant, 0.5kg of epoxy soybean oil, phthalate di Isononyl ester 1.5kg.

[0027] Described dispersant is ethylene bis stearamide. Colorants are pigments.

[0028] The production method of described PVC special color paste, comprises the following steps:

[0029] 1) First weigh calcium carbonate, stabilizer, colorant, dispersant, epoxidized soybean oil, and diisononyl phthalate, and put calcium carbonate, stabilizer, colorant, and dispersant into the mixing cylinder.

[0030] 2) Seal the mixing cylinder and stir for 1 min; the stirring speed is 60r / min.

[0031] 3) Add epoxidized soybean oil and diisononyl phthalate, and continue to stir until uniform. The stirring speed is first slow and then fast, and the mixed material is obtained; the stirring speed is 100r / min at the beginning,...

Embodiment 2

[0035] In the embodiment of the present invention, a special color paste for PVC includes the following components: calcium carbonate 1.5kg, stabilizer 2.5kg, colorant 0.6kg, dispersant 1.5kg, epoxy soybean oil 1.5kg, phthalate di Isononyl ester 2.5kg.

[0036] The dispersant is polyethylene wax. Colorants are pigments.

[0037] The production method of described PVC special color paste, comprises the following steps:

[0038] 1) First weigh calcium carbonate, stabilizer, colorant, dispersant, epoxidized soybean oil, and diisononyl phthalate, and put calcium carbonate, stabilizer, colorant, and dispersant into the mixing cylinder.

[0039] 2) Seal the mixing cylinder and stir for 2 minutes; the stirring speed is 100r / min.

[0040] 3) Add epoxidized soybean oil and diisononyl phthalate, and continue to stir until uniform. The stirring speed is first slow and then fast, and the mixed material is obtained; the stirring speed is 150r / min at the beginning, and the stirring speed...

Embodiment 3

[0044] In the embodiment of the present invention, a special color paste for PVC includes the following components: 0.8kg calcium carbonate, 1.8kg stabilizer, 0.3kg colorant, 1kg dispersant, 0.8kg epoxy soybean oil, diisophthalic acid Nonyl ester 1.8kg.

[0045] Described dispersant is stearic acid. Colorants are pigments.

[0046] The production method of described PVC special color paste, comprises the following steps:

[0047] 1) First weigh calcium carbonate, stabilizer, colorant, dispersant, epoxidized soybean oil, and diisononyl phthalate, and put calcium carbonate, stabilizer, colorant, and dispersant into the mixing cylinder.

[0048] 2) Seal the mixing cylinder and stir for 1 min; the stirring speed is 80r / min.

[0049] 3) Add epoxidized soybean oil and diisononyl phthalate, and continue to stir until uniform. The stirring speed is first slow and then fast, and the mixed material is obtained; the stirring speed is 120r / min at the beginning, and the stirring speed i...

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PUM

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Abstract

The invention discloses special color paste for PVC (Polyvinyl Chloride) and a production method thereof. The special color paste for the PVC is prepared from the following components in parts by weight: 0.5 to 1.5 parts of calcium carbonate, 1.5 to 2.5 parts of a stabilizer, 0.2 to 0.6 part of a coloring agent, 0.8 to 1.5 parts of a dispersant, 0.5 to 1.5 parts of epoxy soybean oil and 1.5 to 2.5parts of diisononyl phthalate. The production method comprises the following steps: putting the calcium carbonate, the stabilizer, the coloring agent and the dispersant into a material mixing barrel;sealing the material mixing barrel and stirring for 1min to 2min; adding the epoxy soybean oil and the diisononyl phthalate and continually stirring until the materials are uniformly stirred at a stirring speed which is slow first and then is rapid, so as to obtain a mixed material; putting the mixed material into a three-roller grinder and grinding, wherein the rotary speed of the three-roller grinder is a rotary speed at which the material is attached on rollers and is not thrown off; packaging and storing the ground color paste. The special color paste disclosed by the invention has the advantages of stable color, uniformity in coloring, convenience for changing colors, no influences on mechanical properties of the material and environment protection.

Description

technical field [0001] The invention relates to the technical field of PVC material production, in particular to a special color paste for PVC and a production method thereof. Background technique [0002] Polyvinyl chloride, English abbreviation PVC (Polyvinyl chloride), is a vinyl chloride monomer (vinyl chloridemonomer, referred to as VCM) in peroxide, azo compound and other initiators; or under the action of light and heat, it can be polymerized according to the mechanism of free radical polymerization reaction. made polymer. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC used to be the most widely used general-purpose plastic in the world. It is widely used in building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, fibers, etc. [0003] Existing PVC material c...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L91/00C08L23/06C08K13/02C08K3/26C08K5/12C08K5/20C08K5/09
CPCC08K3/26C08K5/09C08K5/12C08K5/20C08K13/02C08K2003/265C08L23/06C08L27/06C08L91/06C08L2201/08C08L2205/03C08L91/00
Inventor 乐东岳李庭章虞良华
Owner 宁波经济技术开发区庆辉塑业有限公司
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